(PHP 4, PHP 5)
rtrim — Strip whitespace (or other characters) from the end of a string
$str
[, string $charlist
] )
This function returns a string with whitespace stripped from the
end of str.
Without the second parameter, rtrim() will strip these characters:
str
The input string.
charlist
You can also specify the characters you want to strip, by means
of the charlist parameter.
Simply list all characters that you want to be stripped. With
.. you can specify a range of characters.
Returns the modified string.
| Version | Description |
|---|---|
| 4.1.0 |
The charlist parameter was added.
|
Example #1 Usage example of rtrim()
<?php
$text = "\t\tThese are a few words :) ... ";
$binary = "\x09Example string\x0A";
$hello = "Hello World";
var_dump($text, $binary, $hello);
print "\n";
$trimmed = rtrim($text);
var_dump($trimmed);
$trimmed = rtrim($text, " \t.");
var_dump($trimmed);
$trimmed = rtrim($hello, "Hdle");
var_dump($trimmed);
// trim the ASCII control characters at the end of $binary
// (from 0 to 31 inclusive)
$clean = rtrim($binary, "\x00..\x1F");
var_dump($clean);
?>
The above example will output:
string(32) " These are a few words :) ... " string(16) " Example string " string(11) "Hello World" string(30) " These are a few words :) ..." string(26) " These are a few words :)" string(9) "Hello Wor" string(15) " Example string"